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garik1379 [7]
2 years ago
13

Two true breeding parents are crossed similar to Mendel's P generation. A tall plant is crossed with a short plant. What is the

expected outcome for the F1 generation
Biology
1 answer:
IgorLugansk [536]2 years ago
5 0

Answer:

4/4 plants will be tall

Explanation:

For the gene that determines pea plant height, the allele for tallness is dominant to the short allele.  We'll say that a true-breeding tall plant is AA and a true-breeding short plant is aa.  So for every offspring, the first parent gives a capital A allele and the second parent gives a lowercase a allele, which means that every plant in the F1 generation will have the genotype Aa.  However, because that A/tall allele is dominant over the a/short allele, all of the plants will phenotypically appear tall.

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